Patents Assigned to LEUKOCARE AG
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Patent number: 12472237Abstract: Disclosed are a fibrinogen solution and a thrombin solution. The fibrinogen solution comprises fibrinogen at a concentration of at least 40 mg/ml, factor XIII, pharmaceutically acceptable additives and water. The dynamic viscosity of the fibrinogen solution measured at 20° C. increases at most by 35% after storing the solution at 20° C. for 30 days. The thrombin solution comprises thrombin, pharmaceutically acceptable additives and water. The thrombin activity decreases at most by 15% after storing the solution at 25° C. for 14 days. Also disclosed is a fibrin sealant kit with a first container comprising the fibrinogen solution and a second container comprising the thrombin solution. Further, methods for preparing a fibrin sealant and methods for treating a wound are disclosed.Type: GrantFiled: December 9, 2022Date of Patent: November 18, 2025Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE SA, LEUKOCARE AGInventors: Heinz Gulle, Rahul Kumar Singh, Julia Rabas, Eva Reinauer, Stella Grosso
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Publication number: 20250277056Abstract: The present invention relates to a method of producing a liquid biopharmaceutical drug product, comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step carried out in the presence of a composition comprising at least three amino acids, providing different functions; and (b) a second phase of further processing the drug substance prepared in (a) to obtain a liquid biopharmaceutical drug product, said second phase comprising at least one processing step carried out in the presence of a composition comprising (i) at least three amino acids providing different functions; and (ii) one or more sugar(s); in an amino acid:sugar ratio between 10:1 to 1:100 (w/w). The present invention further relates to a liquid biopharmaceutical drug product obtained or obtainable by the method of the invention.Type: ApplicationFiled: February 29, 2024Publication date: September 4, 2025Applicant: Leukocare AGInventors: Kristina Kemter, Martin Scholz, Jens Altrichter, Thomas Kriehuber
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Patent number: 12350375Abstract: The present invention relates to a method for preparing viral vector-based compositions wherein the viral vector-based particles present in the composition have a particle size distribution with a polydispersity index (PDI) of less than 0.5, the method comprising the steps: (a) providing replication-deficient viral vectors; (b) providing a solution comprising at least one sugar and at least three different excipients selected from hydrophilic and amphiphilic excipients, wherein the excipients are characterized by polar, aliphatic, aromatic, negatively charged, and/or positively charged functional groups, and wherein the solution is further characterized by an excipient-sugar ratio of at least 1:2 (w/w); and (c) mixing the replication deficient viral vectors of step (a) with the solution of step (b).Type: GrantFiled: October 21, 2021Date of Patent: July 8, 2025Assignee: Leukocare AGInventors: Kristina Kemter, Martin Scholz
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Publication number: 20230225939Abstract: The present invention, inter alia, relates to a closed sterilized container comprising at least one carrier which is a stabilizer; and at least one biomolecule reversibly attached to the carrier, wherein said carrier partially or completely covers the attached biomolecules and wherein said at least one carrier is selected from the group consisting of (poly)peptides such as dipeptides or tripeptides, amino acids, polyalcohols, polyethyleneglycols, ionic liquids, compatible solutes, saponins and a mixture thereof. The invention also relates to methods for producing sterilized containers according to the invention and uses thereof.Type: ApplicationFiled: January 18, 2023Publication date: July 20, 2023Applicant: Leukocare AGInventors: Jens Altrichter, Anja Breuer, Nicole Schaath, Julia Quathamer
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Publication number: 20230165793Abstract: The present invention relates to a method of producing low viscous and highly concentrated biopharmaceutical drug products comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step selected from (a1) harvesting, (a2) purification, (a3) re-buffering, and (a4) enrichment, wherein said at least one processing step in this first phase is carried out in the presence of a composition comprising at least three amino acids, wherein the combination of said at least three amino acids provides at least one positively charged functional group, at least one anti-oxidative functional group, at least one osmolytic function, and at least one buffering function, and (b) a second phase of further processing the drug substance prepared in (a) to obtain a low viscous and highly concentrated biopharmaceutical drug product, said second phase comprising at least one processing step selected froType: ApplicationFiled: November 21, 2022Publication date: June 1, 2023Applicant: Leukocare AGInventors: Martin Scholz, Kristina Kemter, Jens Altrichter, Thomas Kriehuber
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Publication number: 20230041240Abstract: The invention relates to a method of reducing or preventing the adsorption of a polypeptide on a surface, or the aggregation of a polypeptide in a liquid composition in contact with a surface comprising the steps of a) providing a composition comprising the polypeptide and at least two different amino acids; b) contacting the composition with the surface. Furthermore, the invention relates to medical devices comprising a composition comprising the polypeptide and at least two different amino acids.Type: ApplicationFiled: January 29, 2021Publication date: February 9, 2023Applicant: Leukocare AGInventors: Andreas Geissler, Kristina Kemter, Sabine Hauck, Maximilian Maarten Böckel
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Patent number: 11564865Abstract: The present invention, inter alia, relates to a closed sterilized container comprising at least one carrier which is a stabilizer; and at least one biomolecule reversibly attached to the carrier, wherein said carrier partially or completely covers the attached biomolecules and wherein said at least one carrier is selected from the group consisting of (poly)peptides such as dipeptides or tripeptides, amino acids, polyalcohols, polyethyleneglycols, ionic liquids, compatible solutes, saponins and a mixture thereof. The invention also relates to methods for producing sterilized containers according to the invention and uses thereof.Type: GrantFiled: January 16, 2014Date of Patent: January 31, 2023Assignee: Leukocare AGInventors: Jens Altrichter, Anja Breuer, Nicole Schaath, Julia Quathamer
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Patent number: 11510871Abstract: The present invention relates to a method of producing low viscous and highly concentrated biopharmaceutical drug products comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step selected from (a1) harvesting, (a2) purification, (a3) re-buffering, and (a4) enrichment, wherein said at least one processing step in this first phase is carried out in the presence of a composition comprising at least three amino acids, wherein the combination of said at least three amino acids provides at least one positively charged functional group, at least one anti-oxidative functional group, at least one osmolytic function, and at least one buffering function, and (b) a second phase of further processing the drug substance prepared in (a) to obtain a low viscous and highly concentrated biopharmaceutical drug product, said second phase comprising at least one processing step selected froType: GrantFiled: September 15, 2017Date of Patent: November 29, 2022Assignee: Leukocare AGInventors: Martin Scholz, Kristina Kemter, Jens Altrichter, Thomas Kriehuber
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METHOD FOR OBTAINING EFFICIENT COMPOSITIONS COMPRISING VIRAL VECTORS FOR VACCINATION OR GENE THERAPY
Publication number: 20220325250Abstract: The present invention relates to a method for preparing a composition comprising a viral vector, the method comprising the steps of a) providing viral vectors, (b) providing a solution comprising at least one sugar and at least three different excipients selected from hydrophilic and amphiphilic excipients, wherein the excipients are characterized by polar, aliphatic, aromatic, negatively charged, and/or positively charged functional groups, and wherein the solution is free or substantially free of Mg2+ or of any divalent cations and/or salts thereof; and (c) mixing the replication deficient viral vectors of step (a) with the solution of step (b). Furthermore, the invention relates to a composition obtained or obtainable by the method of the invention, and to a composition comprising a viral vector and the solution of step (b).Type: ApplicationFiled: August 14, 2020Publication date: October 13, 2022Applicant: Leukocare AGInventors: Eva Reinauer, Kristina Kemter, Jens Altrichter -
Novel Method for Obtaining Efficient Viral Vector-Based Compositions for Vaccination or Gene Therapy
Publication number: 20220202717Abstract: The present invention relates to a method for preparing viral vector-based compositions wherein the viral vector-based particles present in the composition have a particle size distribution with a polydispersity index (PDI) of less than 0.5, the method comprising the steps: (a) providing replication-deficient viral vectors; (b) providing a solution comprising at least one sugar and at least three different excipients selected from hydrophilic and amphiphilic excipients, wherein the excipients are characterized by polar, aliphatic, aromatic, negatively charged, and/or positively charged functional groups, and wherein the solution is further characterized by an excipient-sugar ratio of at least 1:2 (w/w); and (c) mixing the replication deficient viral vectors of step (a) with the solution of step (b).Type: ApplicationFiled: October 21, 2021Publication date: June 30, 2022Applicant: Leukocare AGInventors: Kristina Kemter, Martin Scholz -
Patent number: 11166915Abstract: The present invention relates to a method for preparing viral vector-based compositions wherein the viral vector-based particles present in the composition have a particle size distribution with a polydispersity index (PDI) of less than 0.5, the method comprising the steps: (a) providing replication-deficient viral vectors; (b) providing a solution comprising at least one sugar and at least three different excipients selected from hydrophilic and amphiphilic excipients, wherein the excipients are characterized by polar, aliphatic, aromatic, negatively charged, and/or positively charged functional groups, and wherein the solution is further characterized by an excipient-sugar ratio of at least 1:2 (w/w); and (c) mixing the replication deficient viral vectors of step (a) with the solution of step (b).Type: GrantFiled: September 15, 2017Date of Patent: November 9, 2021Assignee: Leukocare AGInventors: Kristina Kemter, Martin Scholz
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Patent number: 11060068Abstract: The present invention relates to a method for stabilising viruses or bacteria, the method comprising embedding the viruses or bacteria in an aqueous solution, wherein the solution comprises: (i) at least three different amino acids; or (ii) at least one dipeptide or tripeptide and wherein the solution is free or substantially free of sugar(s), silanes and protein(s).Type: GrantFiled: June 28, 2012Date of Patent: July 13, 2021Assignee: Leukocare AGInventors: Martin Scholz, Jens Altrichter, Kristina Kemter
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Patent number: 10588957Abstract: The present invention relates to a method for producing stabilised vaccines, the method comprising: (a) mixing antigens with a solution comprising: (i) chitosan; (ii) at least three different amino acids and/or at least one dipeptide or tripeptide; and (iii) a sugar; and (b) drying the mixture obtained in (a).Type: GrantFiled: October 24, 2014Date of Patent: March 17, 2020Assignee: LEUKOCARE AGInventors: Martin Scholz, Jens Altrichter, Kristina Kemter, Regina Scherliess, Hartwig Steckel
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Patent number: 10421776Abstract: The present invention relates to a method for preventing the unfolding of a (poly)peptide during drying and/or inducing the (re-)folding of a (poly)peptide after drying, comprising the step of embedding the (poly)peptide in an aqueous solution, wherein the solution comprises (i) at least three different amino acids; or (ii) at least one dipeptide or tripeptide; and wherein the solution is free or substantially free of (a) sugar; and (b-i) protein; and/or (b-ii) denaturing compounds; and (c) silanes.Type: GrantFiled: January 13, 2016Date of Patent: September 24, 2019Assignee: Leukocare AGInventors: Martin Scholz, Jens Altrichter, Kristina Kemter
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Patent number: 10406271Abstract: The present invention relates to a method for filtering blood to produce plasma or serum and to a blood filter for the production of plasma or serum from a blood sample. The invention further relates to a kit comprising a blood filter for the production of plasma or serum from a blood sample and a syringe.Type: GrantFiled: December 9, 2015Date of Patent: September 10, 2019Assignee: Leukocare AGInventors: Stefan Margraf, Martin Scholz
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Publication number: 20190269618Abstract: The present invention relates to a method for preparing viral vector-based compositions wherein the viral vector-based particles present in the composition have a particle size distribution with a polydispersity index (PDI) of less than 0.5, the method comprising the steps: (a) providing replication-deficient viral vectors; (b) providing a solution comprising at least one sugar and at least three different excipients selected from hydrophilic and amphiphilic excipients, wherein the excipients are characterized by polar, aliphatic, aromatic, negatively charged, and/or positively charged functional groups, and wherein the solution is further characterized by an excipient-sugar ratio of at least 1:2 (w/w); and (c) mixing the replication deficient viral vectors of step (a) with the solution of step (b).Type: ApplicationFiled: September 15, 2017Publication date: September 5, 2019Applicant: Leukocare AGInventors: Kristina Kemter, Martin Scholz
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Publication number: 20190256551Abstract: The present invention relates to a method of producing a liquid biopharmaceutical drug product, comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step selected from (a1) harvesting, (a2) purification, (a3) re-buffering, and (a4) enrichment, wherein said at least one processing step in this first phase is carried out in the presence of a composition comprising at least three amino acids, wherein the combination of said at least three amino acids provides at least one positively charged functional group, at least one anti-oxidative functional group, at least one osmolytic function, and at least one buffering function, and (b) a second phase of further processing the drug substance prepared in (a) to obtain a liquid biopharmaceutical drug product, said second phase comprising at least one processing step selected from (b1) re-buffering, (b2) freezing, (b3) thawing, and (bType: ApplicationFiled: September 15, 2017Publication date: August 22, 2019Applicant: Leukocare AGInventors: Kristina Kemter, Martin Scholz, Jens Altrichter, Thomas Kriehuber
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Publication number: 20190216734Abstract: The present invention relates to a method of producing low viscous and highly concentrated biopharmaceutical drug products comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step selected from (a1) harvesting, (a2) purification, (a3) re-buffering, and (a4) enrichment, wherein said at least one processing step in this first phase is carried out in the presence of a composition comprising at least three amino acids, wherein the combination of said at least three amino acids provides at least one positively charged functional group, at least one anti-oxidative functional group, at least one osmolytic function, and at least one buffering function, and (b) a second phase of further processing the drug substance prepared in (a) to obtain a low viscous and highly concentrated biopharmaceutical drug product, said second phase comprising at least one processing step selected froType: ApplicationFiled: September 15, 2017Publication date: July 18, 2019Applicant: Leukocare AGInventors: Martin Scholz, Kristina Kemter, Jens Altrichter, Thomas Kriehuber
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Publication number: 20190216925Abstract: The present invention relates to a method of producing a biopharmaceutical drug product comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step selected from (a1) harvesting, (a2) purification, (a3) re-buffering, and (a4) enrichment, wherein said at least one processing step in this first phase is carried out in the presence of a composition comprising at least three amino acids, wherein the combination of said at least three amino acids provides at least one positively charged functional group, at least one anti-oxidative functional group, at least one osmolytic function, and at least one buffering function, and (b) a second phase of further processing the drug substance prepared in (a) to obtain a biopharmaceutical drug product, said second phase comprising at least one processing step selected from (b1) re-buffering, (b2) freezing, (b3) thawing, and (b4) filling; wheType: ApplicationFiled: September 15, 2017Publication date: July 18, 2019Applicant: Leukocare AGInventors: Martin Scholz, Kristina Kemter, Jens Altrichter, Thomas Kriehuber
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Patent number: 9926383Abstract: The present invention relates to a method of producing a solid coated carrier carrying biological material. Furthermore, the invention relates to a solid coated carrier to which biological material is attached and uses of the solid coated carrier for the preparation of a medical product. Moreover, the invention provides a method for the contacting, filtration or cleaning of blood, lymph or liquor cerebrospinalis of a patient, a method for the diagnosis of a disease and a diagnostic composition.Type: GrantFiled: May 7, 2007Date of Patent: March 27, 2018Assignee: LEUKOCARE AGInventors: Stefan Margraf, Martin Scholz